Micro-flow green high-energy monopropellant thruster structure

Abstract

The invention relates to a micro-flow green high-energy monopropellant thruster structure. The catalytic decomposition of a propellant is realized under the action of a catalyst in a catalysis bed, and the propellant is further combusted in a combustion chamber and then is sprayed out by a spray pipe to generate thrust; and a heat control assembly is installed on the catalysis bed in a thrust chamber, and temperature control and monitoring are carried out on the catalysis bed. The micro-flow green high-energy mono propellant thruster structure has the advantages that the temperature of a capillary pipe is regulated and controlled through a heat conduction sheet, a capillary pipe heat conduction wire and the like, the two-phase flow, generated in the capillary pipe, of the propellant is inhibited under the micro-flow, and the stable operation of a micro-flow green high-energy monopropellant thruster is realized. The micro-flow green high-energy monopropellant thrust has the characteristics of being high in specific impulse, green, non-toxic, light in mass, capable of being pre-packaged and the like, the required force or torque is provided for maneuvering, fast response and the likeof a micro-nano satellite, and the application space of the micro-nano satellite is greatly expanded.

Description

technical field [0001] The invention relates to a micro-flow green high-energy single-unit thruster structure, which belongs to the field of propulsion technology. Background technique [0002] With the development of green high-energy single-element propulsion technology, such as ADN propulsion technology, the performance of the thruster has been greatly improved, but at the same time, due to the increase in the temperature of the thrust chamber, the thermal environment in which the thruster is located is even worse, which affects the thruster’s performance. The design brings great challenges. At the same time, for small-thrust single-element thrusters, the working flow of the thruster is small, which makes the thruster more sensitive to the temperature rise of the thrust chamber, which will cause the propulsion in the capillary of the thruster injector. The agent produces a two-phase flow, forming an air block, resulting in unstable thrust, which cannot meet the applicatio...

AI Technical Summary

Problems solved by technology

[0002] With the development of green high-energy single-element propulsion technology, such as ADN propulsion technology, the performance of the thruster has been greatly improved, but at the same time, due to the increase in the temperature of the thrust chamber, the thermal environment in which the thruster is located is even worse, which affects the thruster’s performance. The design brings great challenges. At the same time, for small-thrust single-element thrusters, the working flow of the thruster is small, which makes the thruster more sensitive to the temperature rise of the thrust chamber, which will cause the propulsion in the capillary of the thruster injector. The agent produces two-phase flow, forming an air block, resulting in unstable thrust, which cannot meet the requirements of use

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